An actor, in the context of consumer intelligence and qualitative research, refers to any participant, stakeholder, or agent whose choices and behaviors shape the phenomenon under study. This includes individual consumers, household decision-makers, category influencers, or organizational buyers. Understanding actors means going beyond what they do to capture why they do it, including the social, emotional, and contextual forces that drive their decisions. In qualitative research, mapping actors helps teams identify who holds influence at each stage of a decision journey, which personas carry the most weight in category behavior, and where unmet needs are concentrated. Accurate actor identification is foundational to research design, discussion guide development, and the validity of any consumer insight.